Sample L311

NavDat sample number 5107 · RHYOLITE

Sample

Sample ID	L311
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	35.7
Longitude	-114.817
Location	Patsy Mine Volcanics
State / province	Nevada
Location comment	Patsy Mine Volcanics in ridge east of Welcome Fault and 1 mile northwest of Techatticup mine, Eldorado district, NV

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
15.55		14	17.1	Tertiary

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	72.21		WT%	UNKNOWN
AL2O3	12.34		WT%	UNKNOWN
FE2O3	0.59		WT%	UNKNOWN
FEO	0.18		WT%	UNKNOWN
MGO	0.12		WT%	UNKNOWN
CAO	0.97		WT%	UNKNOWN
NA2O	3.33		WT%	UNKNOWN
K2O	4.16		WT%	UNKNOWN
H2O_MINUS	4.75		WT%	UNKNOWN
H2O_PLUS	1		WT%	UNKNOWN
TIO2	0.12		WT%	UNKNOWN
P2O5	0.01		WT%	UNKNOWN
MNO	0.05		WT%	UNKNOWN

References

Anderson, R E (1977) Composite stratigraphic section of Tertiary volcanic rocks in the Eldorado Mountains, Nevada. Open-File Report - U. S. Geological Survey. 1977.